H685-5G-v3.2.343 – November 2025

• Added an ‘On Boot’ option for DTU and GPS modules. When enabled, the selected module will automatically start during system boot. When disabled, the module will remain inactive until manually started.
• Verify the cellular module status after a USB restart. If the module does not come online, reinstall the XHCI driver to restore functionality.

• Resolved an intermittent issue where NTRIP sessions could become stuck, ensuring stable and continuous operation.

H685-5G-v3.2.341 – November 2025

• Resolved an issue in ZeroTier where changing the network ID would fail, ensuring successful network ID updates.

H685-5G-v3.2.340 – October 2025

• Fixed issue where module 1 will drop when dialling module 2.
• Fixed issue with module rebooting.
• Improved robustness of the code in SMS feature.

H685-5G-v3.2.339 – October 2025

• Added support for SLM770A

H685-5G-v3.2.338 – October 2025

• Fixed issue that IP passthrough sometimes cannot work on RM520N.
• Support dual EM06 and RM500U+RM520N.

H685-5G-v3.2.337 – September 2025

• Added band lock option for RM500U.

H685-5G-v3.2.336 – August 2025

• Add ipv4v6 options on Network–>Mobile page for EP06.

H685-5G-v3.2.334 – June 2025

• Updated HTTPS certificate generate method.

H685-5G-v3.2.333 – June 2025

• Added fail-over feature triggers on Signal strength status.

H685-5G-v3.2.332 – May 2025

• Added TCP server support.
• Added GPS sync system time.
• Added GPS status on overview page.

H685-5G-v3.2.331 – April 2025

• Optimized the dial-up process.
• Fixed an issue where the SLM750 disconnected from the internet every 21 hours when SMS was enabled.

• Added operator selection support for the RM520N module.

• Fixed an issue where the L2TP server sometimes failed to add the correct route for remote subnets.

H685-5G-v3.2.325 – December 2024

• Fixed a conflict between the Sierra Gobinet driver and the Fibocom Gobinet driver.

• Added support for Fibocom modules.

H685-5G-v3.2.323 – October 2024

• Updated the HTTPS certificate generation method, addressing an issue where Chrome refused access to the HTTPS web GUI.
• Added an option to save system logs and kernel logs during reboot.
• Fixed an issue where 5G-NSA and 4G showed incorrect signal strengths of 20 or 2.
• Fixed an issue where static routes could not be deleted.
• Optimized the dialling process.
• Added support for two modules on the H900-MT7621.

H685-5G-v3.2.317 – July 2024

• Introduced NTRIP functionality, which sends corrections to the serial port.
• Displayed GPS coordinates on the overview page.
• Added SNMP OIDs for RM500Q modem temperature.
• Added SNMP OIDs for VRRP status.

H685-5G-v3.2.315 – June 2024

• Removed the UI file browser page.
• Fixed several UI vulnerabilities.
• Added SNMP OIDs for 5G RSRP, RSRQ, and SINR.
• Added SNMP OIDs for VRRP status.

H685-5G-v3.2.313 – May 2024

• Updated the password generation algorithm.
• Added operator scanning functionality for RM520 and RM500Q.
• Introduced logic to reboot the router to recover the modem if it is not detected and ICMP check is enabled.
• Changed the display on real-time graphs from DNS to IP.
• Added GPS status to the overview page and gateway.
• Fixed an issue with SIM username/password fields containing the `$` symbol.

H685-5G-v3.2.309 – April 2024

• Fixed an issue with DIO triggering SMS.

H685-5G-v3.2.309 – April 2024

• Fixed an issue with DIO triggering SMS.
• Added band locking for the RM520N-GL module.

H685-5G-v3.2.307 – April 2024

• Fixed a Wi-Fi issue introduced in version 3.2.306.
• Added DIO direction configuration on the web GUI.

H685-5G-v3.2.306 – March 2024

• Updated NMS for 5G.
• Fixed an automatic APN issue.
• Resolved an issue where the modem might not dial after booting.
• Added a web GUI for uploading HTTPS certificates.

H685-5G-v3.2.303 – January 2024

• Enabled automatic saving of configuration files to flash as a backup.
• Introduced the “save_flash” command for UCI configuration or SSH file edits.
• Removed the Flash Backup and Restore option from System → Backup/Restore.
• Introduced a forced password change feature (new password can match the default).

H685-5G-v3.2.302 – January 2024

• Fixed an issue where enabling the firewall via the web GUI failed after initially disabling it and then powering on the router.
• Updated Chinese translations.
• Added support for the RM500U module.

H685-5G-v3.2.291 – October 2023

• Fixed issue that sometimes SSH account cannot be changed from web GUI.
• Show 5G module signal per antenna on page Status–>Network–>Mobile.

H685-5G-v3.2.290 – October 2023

• Fixed mobile network selection.
• Fixed EP06 dial issue.

H685-5G-v3.2.289 – September 2023

• Added RM520N support inner SIM switch and outer SIM switch.

H685-5G-v3.2.288 – August 2023

• Fixed dynamic routing password issue.
• Upgrade dial tool qua_cm to v1.6.5
• Upgraded RM500Q driver to v1.6.5
• Added feature to run customized script in /etc/config/script.custom
• Added support for single IP as remote subnet in IPSEC.

H685-5G-v3.2.286 – June 2023

• Added Auto APN feature.

H685-5G-v3.2.285 – May 2023

• Fix ipv6 address show on overview page.
• Added auto APN,username and password functionality.
• Fixed IPSEC server restart tunenel periodically.
• Removed 100~199 on strength item of overview page.
• Removed logs of failover.

H685-5G-v3.2.284 – May 2023

• Fixed issue with single module Dual SIMs when switch from Primary to secondary.
• Add IPv6 support for RM500Q SRM825.

H685-5G-v3.2.282 – May 2023

• Added web GUI to force changing default password for specific customers.

H685-5G-v3.2.281 – March 2023

• Change text of webGUI system–>Password.
• Fixed an issue that may cause LAN cannot resolve DNS.

H685-5G-v3.2.275 – December 2022

• Update UBOOT for error light blink on H900 and H685-5G.
• Added new option reboot device if WIFI not detected at WiFi config page.

H685-5G-v3.2.263 – July 2022

• Fixed loopback ping issue.
• Fixed firewall security default value issue